stderr '^go: \.\. \('$WORK'[/\\]gopath\) is not within module rooted at '$WORK'[/\\]gopath[/\\]src$'
! go get $WORK
stderr '^go: '$WORK' is not within module rooted at '$WORK'[/\\]gopath[/\\]src$'
! go get ../...
stderr '^go: \.\./\.\.\. \('$WORK'[/\\]gopath([/\\]...)?\) is not within module rooted at '$WORK'[/\\]gopath[/\\]src$'
! go get $WORK/...
stderr '^go: '$WORK'[/\\]\.\.\. is not within module rooted at '$WORK'[/\\]gopath[/\\]src$'

					out.w--
				}
			case !rooted:
				// cannot backtrack, but not rooted, so append .. element.
				if out.w > 0 {
					out.append(Separator)
				}
				out.append('.')
				out.append('.')
				dotdot = out.w
			}
		default:
			// real path element.
			// add slash if needed
			if rooted && out.w != 1 || !rooted && out.w != 0 {
				out.append(Separator)
			}

					out.w--
				}
			case !rooted:
				// cannot backtrack, but not rooted, so append .. element.
				if out.w > 0 {
					out.append('/')
				}
				out.append('.')
				out.append('.')
				dotdot = out.w
			}
		default:
			// real path element.
			// add slash if needed
			if rooted && out.w != 1 || !rooted && out.w != 0 {
				out.append('/')
			}
			// copy element

// Find the first op with any of the specified types on each path rooted at the
// `root` node in a tree. Additional checks can be applied via `predicate`. The
// results are stored in `ops`.
template <typename T, typename... Types>
LogicalResult GetFirstOpsOfType(
    func::FuncOp root, SymbolTable &symtab,
    const std::function<bool(SymbolUserOpInterface)> &predicate,

//     (concrete type / interface type).  This itab goes in hash bucket 0x111.
//  2. The plugin adds that same itab again.  That makes a cycle in the itab
//     chain rooted at hash bucket 0x111.
//  3. The main binary then asks for the itab for *dynamodbstreamsevt.Event /
//     json.Unmarshaler.  This itab happens to also live in bucket 0x111.

import (
	"errors"
	"path"
)

// A SubFS is a file system with a Sub method.
type SubFS interface {
	FS

	// Sub returns an FS corresponding to the subtree rooted at dir.
	Sub(dir string) (FS, error)
}

// Sub returns an [FS] corresponding to the subtree rooted at fsys's dir.
//
// If dir is ".", Sub returns fsys unchanged.
// Otherwise, if fs implements [SubFS], Sub returns fsys.Sub(dir).

var getHostname = os.Hostname // variable for testing

type dnsConfig struct {
	servers       []string      // server addresses (in host:port form) to use
	search        []string      // rooted suffixes to append to local name
	ndots         int           // number of dots in name to trigger absolute lookup
	timeout       time.Duration // wait before giving up on a query, including retries

	UsageLine: "go mod init [module-path]",
	Short:     "initialize new module in current directory",
	Long: `
Init initializes and writes a new go.mod file in the current directory, in
effect creating a new module rooted at the current directory. The go.mod file
must not already exist.

Init accepts one optional argument, the module path for the new module. If the
module path argument is omitted, init will attempt to infer the module path

// uses slash separated paths.
func WalkDir(root string, fn fs.WalkDirFunc) error {
	info, err := os.Lstat(root)
	if err != nil {
		err = fn(root, nil, err)
	} else {
		err = walkDir(root, fs.FileInfoToDirEntry(info), fn)
	}
	if err == SkipDir || err == SkipAll {
		return nil
	}
	return err
}

// Walk walks the file tree rooted at root, calling fn for each file or

var p0i p0.I = t0(0) // ok
var p1i p1.I = t1(0) // ok

func main() {
	// check that reflect paths are correct,
	// meaning that reflect data for v0, v1 didn't get confused.

	// path is full (rooted) path name.  check suffix for gc, prefix for gccgo
	if s := reflect.TypeOf(v0).PkgPath(); !strings.HasSuffix(s, "/bug0") && !strings.HasPrefix(s, "bug0") {
		println("bad v0 path", len(s), s)
		panic("fail")
	}